Quantum entity authentication apparatus and method

    公开(公告)号:US11736280B2

    公开(公告)日:2023-08-22

    申请号:US16887170

    申请日:2020-05-29

    CPC classification number: H04L9/0852 H04B10/70 H04L9/0819

    Abstract: A quantum entity authentication apparatus and method. The quantum entity authentication apparatus includes a quantum state preparation unit for preparing an authentication quantum state that is generated based on an authentication key previously shared with an entity, a quantum channel verification unit for transmitting a quantum state, generated by performing an operation using a prestored unique operator on the authentication quantum state, to a quantum measurement device, and for verifying security of a quantum channel by using a result of Bell measurement and the authentication quantum state, the result of Bell measurement being revealed by the quantum measurement device for the quantum state, and a quantum entity authentication unit for, when the security of the quantum channel is verified, authenticating the entity using the result of the Bell measurement and the unique operator.

    5G system operating as TSN bridge and traffic transmission method

    公开(公告)号:US11729660B2

    公开(公告)日:2023-08-15

    申请号:US17398165

    申请日:2021-08-10

    CPC classification number: H04W28/0263 H04W28/0205 H04W28/0268

    Abstract: A 5G system operating as a Time Sensitive Network (TSN) bridge and a traffic transmission method are provided. The traffic transmission method includes receiving, by a User Plane Function (UPF), a traffic transmission type information from a Session Management Function (SMF); determining, by the UPF, whether a Time Sensitive Communication (TSC) traffic incoming the TSN bridge is a UE-UE TSC traffic based on the traffic transmission type information; and when it is determined that the TSC traffic incoming the TSN bridge is the UE-UE TSC traffic, performing, by the UPF, local switching between Protocol Data Unit (PDU) sessions for transmitting UE-UE TSC traffic.

    Digital twin disaster management system customized for underground public areas

    公开(公告)号:US11729597B2

    公开(公告)日:2023-08-15

    申请号:US17534563

    申请日:2021-11-24

    CPC classification number: H04W4/90 G06T19/003 H04W4/38 H04W4/80

    Abstract: Provided is a digital twin disaster management system customized to keep safety for urban underground tunnels, including: a sensor sub-system configured to detect environmental information, status information and image information in the urban underground tunnels; a digital twin model management sub-system configured to create and update a virtual space corresponding to the urban underground tunnels using information provided from the sensor sub-system and 3D space, insert various types of attributes into the virtual space, detect tagging information, predict the spread of each disaster, and infer a degree of risk of a management facility; a disaster management sub-system having a control function of conducting centralized supervision by displaying information about components installed in the urban underground tunnels in the metaverse space and recording a situation; and a network sub-system configured to provide the virtual space to a user terminal of an external inspector.

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